where can I get the sde.st_buffer distance units?

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08-22-2014 11:33 AM
WalterEralio
New Contributor III

I need to spatial query a layer in WGS84 with a variable amount of FEETs  but cannot seem to find documentation on the units the st_buffer functions is using

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VinceAngelo
Esri Esteemed Contributor

SDE.ST_BUFFER uses Cartesian map units in the coordinate reference of the SRID of the column.  For GCS_WGS_1984, this will be linear degrees.   You can use SDE.ST_TRANSFORM to change the buffer about a PCS feature into a GCS geometry for search.

- V

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VinceAngelo
Esri Esteemed Contributor

SDE.ST_BUFFER uses Cartesian map units in the coordinate reference of the SRID of the column.  For GCS_WGS_1984, this will be linear degrees.   You can use SDE.ST_TRANSFORM to change the buffer about a PCS feature into a GCS geometry for search.

- V